For my upcoming project, I've decided to give Hogan.js a try. However, I've hit a roadblock while trying to experiment with it - I can't figure out how to use helpers with Hogan.js. I'm familiar with using them in Handlebars, but I'm not sure if the same functionality exists in Hogan.js. Can anyone provide me some guidance on this?
According to the official hogan.js website:
The development of Hogan.js was based on the mustache test suite, so anything that applies to templates as outlined there also holds true for hogan.js.
To get a comprehensive overview of features, it is recommended to refer to the mustache manual, particularly focusing on lambda expressions.
Take a look at this example comparison of implementation between hogan.js and handlebars.js.
Template
{{#bold}}
Willy is awesome.
{{/bold}}
Hogan.js
{
"bold": function() {
return function(text, render) {
return "<b>" + render(text) + "</b>"
}
}
}
Handlebars.js
Handlebars.registerHelper('bold', function(options) {
return new Handlebars.SafeString(
'<b>' + options.fn(this) + '</b>'
);
});
Output
<b>Willy is awesome.</b>
I struggled with this issue until I stumbled upon a helpful discussion about Lambdas in Hogan
No longer is it necessary to pass render to the helper.
Example
{{#foo}}
Let's enclose this text in an HTML tag.
{{/foo}}
Hogan.js Logic
"foo": function() {
return function(text) {
return "<p>" + text + "</p>"
}
Result
<p>Let's enclose this text in an HTML tag.</p>
The challenge was a bit more complex for me because I had:
Example
{{#foo}}
{{bar}}
{{/foo}}
Therefore, the text passed to the helper was simply "{{bar}}"
Hogan.js Logic
"foo": function() {
return function(text) {
// First, obtain the rendered bar variable
var bar = Hogan.compile(text).render(this));
return "<p>" + bar + "</p>"
}
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